Clarice investigates the extent to which quantum effects influence biology. The hypothesis that quantum effects might provide an essential benefit to life is astonishing. “Living quantum sensors” appear to surpass tech devices, even if embedded in a noisy, hot and wet bio environment. Established quantum techniques can be used to study and control the effect, leading to the engineering of bio-mimetic sensors, and to the harnessing of quantum degrees of freedom to commandeer and drive physiology.